EP 3056135 B1 20190508 - SYSTEM AND METHOD FOR MEASURING CORNEAL TOPOGRAPHY
Title (en)
SYSTEM AND METHOD FOR MEASURING CORNEAL TOPOGRAPHY
Title (de)
SYSTEM UND VERFAHREN ZUR MESSUNG DER HORNHAUTTOPOGRAFIE
Title (fr)
SYSTÈME ET PROCÉDÉ POUR MESURER LA TOPOGRAPHIE CORNÉENNE
Publication
Application
Priority
- US 76905407 A 20070627
- EP 08772174 A 20080627
- US 2008068588 W 20080627
Abstract (en)
[origin: US2009002631A1] A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length, f. The second light sources are disposed to be in an optical path approximately one focal length, f, away from the optical element.
IPC 8 full level
A61B 3/10 (2006.01); A61B 3/107 (2006.01)
CPC (source: EP US)
A61B 3/1015 (2013.01 - EP US); A61B 3/107 (2013.01 - EP US); A61B 3/152 (2013.01 - US); G01B 11/25 (2013.01 - EP US); A61B 3/145 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2009002631 A1 20090101; US 7976163 B2 20110712; AU 2008268144 A1 20081231; AU 2008268144 B2 20121206; CA 2691658 A1 20081231; CA 2691658 C 20181002; CA 3016518 A1 20081231; EP 2166923 A2 20100331; EP 2166923 B1 20160420; EP 3056135 A1 20160817; EP 3056135 B1 20190508; EP 3552536 A1 20191016; EP 3552536 B1 20210407; WO 2009003172 A2 20081231; WO 2009003172 A3 20090423
DOCDB simple family (application)
US 76905407 A 20070627; AU 2008268144 A 20080627; CA 2691658 A 20080627; CA 3016518 A 20080627; EP 08772174 A 20080627; EP 16157307 A 20080627; EP 19173123 A 20080627; US 2008068588 W 20080627